The study examined the fatty acid content of eleven different brands of peanut butter, including Skippy, Jif, Peter Pan and Smuckers, and found no trans-fat in any of the samples. Some peanut butters contain a small amount (approximately 1-2 percent) of partially hydrogenated oil used as stabilizers to prevent oil separation. This produces a smooth and creamy product that most consumers prefer. The amount of trans-fat in peanut butter with 2% stabilizer is less than .0032 g, or 156 times less than what is needed to reach the 0 g trans-fat cut-off.
thats what i found . . . im just wondering cus natty pb is a lot more exspensive 2 bucks more for a jar half the size ouch.